1.With large round PTT and changeable boom microphone.
2.Noise cancelling boom microphone
3.High quality large round PTT button with 360 degree metal clip,PTT#50
4.Ear cups accoustic noise reduction material and comfortable gel ear pads
5.Behind the head metal band with overhead strap idea for use hard hats.
6.Optional red PTT,mini XLR quick disconnected jack avaiable.
7.Compatible for all brand radios.